Deja Vu: Mystery of memory

Deja vu is the strange feeling that a novel situation is familiar. This paper reviews the scientific literature on deja vu, including proposed explanations, prevalence, associated factors, and implications. Research suggests deja vu occurs in 60-100% of healthy individuals, but the exact mechanisms remain unclear. Leading hypotheses propose deja vu results from divided attention, fatigue, anxiety, or abnormalities in memory formation and retrieval.